Osg 72300416 Ball End Mill 0.0625 in 4 Flute Carbide

Product Description

The OSG 72300416 is a solid carbide ball end mill engineered for high-performance material removal in graphite and non-ferrous metals. Part of OSG's Series 7230 Exocarb Diamond line, it features a CVD diamond coating that delivers exceptional hardness and wear resistance for demanding cutting applications. The mill measures 0.0625 inches in diameter with a 0.1875-inch length of cut, a 0.125-inch straight cylindrical shank, and a 1.5-inch overall length. The 4-flute, 30-degree medium helix geometry supports both roughing and finishing passes in a single tool. Machining professionals and CNC toolroom technicians will find this tool suited to precision, small-diameter work.

This end mill is designed for use in CNC machining centers and manual mills where small-diameter ball-nose cutting is required. Its CVD diamond coating makes it particularly well suited for graphite electrode machining and non-ferrous materials such as aluminum, copper, and composites. The single-end, right-hand cutting and right-hand flute configuration is compatible with standard R8, ER collet, and hydraulic toolholding systems accepting a 0.125-inch shank.

Key Features

• CVD diamond coating optimized for graphite and non-ferrous material removal
• 4-flute helical design supports both roughing and finishing in one pass
• 0.0313-inch nose radius for accurate ball-nose contour profiling
• 30-degree medium helix angle for balanced chip evacuation and surface finish
• Solid carbide substrate for rigidity and dimensional stability at high RPM
• Shank diameter tolerance h6 for consistent toolholder fit and runout control

Compatibility

Designed for use with graphite and non-ferrous workpiece materials (material codes N and O); accepts standard 0.125-inch straight cylindrical collet toolholders.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolroom technician. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout/tagout state before changing tooling. Seat the shank fully in the collet to the recommended engagement depth and torque the collet nut per the toolholder manufacturer's specification. Verify runout with a dial indicator before initiating a cut, as small-diameter carbide tools are sensitive to toolholder concentricity.